John Lackey has a monster home/road split this season. He's pitched to a 10-3 mark and 1.91 ERA at home, but is 2-5 with a 4.40 ERA in 12 road starts.

Lackey turns 37 in another two months and there are signs - besides his bad road performances - that point out danger such he has the second-highest line drive percentage this month. His fly ball ratio has risen each of the last three months, too. Lackey has surrendered at least one homer in four of his last five starts. Chase Field is one of the better hitting parks in the majors, it's not a good fit for Lackey.

Note this stat: St. Louis has lost 13 of the past 16 times when Lackey has started away from Busch Stadium.

Arizona southpaw Patrick Corbin has made nine starts since returning from Tommy John surgery. He's looked good in most of them. He wasn't impressive in his last start, a 5-4 win versus the Reds this past Thursday, but previous to that he had a 2.67 ERA in his last five starts. The Cardinals have the disadvantage of never having faced him.

Corbin has averaged more than a strikeout per inning this season and has a good history of pitching at Chase Field where the Diamondbacks have gone 15-5 the past 20 times he's been a home favorite.

The Cardinals are an amazing 62-30 against right-handers, but a less impressive 18-15 versus lefties.